Valve-spring compressor



April z2, 1924. 1,491,190

'O. BLOMBERG VALVE SPRING COMPRESSOR- April 2z, 1924. 1,491,190

O.BLOMBERG VALVE SPRING COMPRESSOR Filed April 11. 1922 3 Sheets-Sheet 2April 22 1924. 1,491,190

O.BLOMBERG VALVE SPRING coMPREssoR Filed April 11. 1922 3 sheetssheet 5Patented pr. 22, i924..

UNET@ STATES4 OTTO BLOMBERG, OF HUBBARD WODS, ILLNIS.

VALVE-SPRNG COMPRESSOR.

Application med April 11, 1922.

To all whom it may concern:

Be it kno\vn that il, O'rTo Enormi-ERG, a subject of the King of Sweden,a resident oi Hubbard Woods. county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Valve-SpringCompressors, of which thefollowing is a specification.

This invention relates to valve spring compressors and has for itsobject the provision oi` a device of this character which compresses avalve spring and automatically locks same in compressed position.

Another object of the invention is to provide a device which is capableof a straight lift in contradistinction to the un` desirable twistinglift commonly present when ordinary devices are employed.

A still further object of the invention is to provide a device havingreversible actuating means so that the device may7 be utilized indiiierent situations.

A still `further object of the invention is to provide reversibleratchet mechanism for automatically locking the actuating means toprevent its return to inoperative position.

A still further objectfof the invention is to provide means whereby thelength of stroke of the device may be varied if desired.

Other objects will appear hereinafter.

The invention consists in the combinations and arrangements of partshereinafter described and claimed.

The invention will be 'best understood by reference to the accompanyingdraWngS forming a part of this specification, and in which, y

Fig. 1, isv a sectional view of a motor and valve, showin an elevationalview ofV the -invention app led thereto,

Fig. 2, is a plan view of a reducing washer used in connection with thedevice,

Fig, 3, is an edge viewlof the washer shown in Fig. 2,

Fig. 4, is a section on the line 4-4, Fie. 1,

Fig. 5, is a section on the line 5-5, Fig. 1,

Fig. 6, is a section on the line 6 6, 1,

Fig. 7. is a section on the line 7 7, Fig. l.

Fig. 8, is an elevation of locking hooks used in connection with theinvention.

Fig. 9, is a view of the locking hooks showing same in operativeposition,

Fig. 10, is a side elevation of the in- Scrial No. 551,522.

vention, showing a modified form of attachment applied thereto, and 1Fig. 11, is a section on line 11-11, Fig. 10.

The invention is'particularly adapted for the purpose of compressingsprings of motor valves in order to unseat same, and in Fig. 1 of thedrawings I have lillustrated a portion of a common type of motor, whichis indicated by the numeral 20, such motor having a valve 21, a valvestem 22, and a spring 23 disposed about said stem to hold said valve toits seat, all of such construction being in common use. It is well knownthat it is particularly awkward and inconvenient to compress a strongspringlikc 23, compression of such spring being necessary to releasethefvalve stem `21.

It is the object of my invention to provide a device which will quicklyand conveniently compress valve springs, and automatically hold same incompressed position until the stem of the valve can be released. Suchdevice preferably consists of a standard 24,' of any suitable shape andmaterial, preferably reinforced by a flange 24', as shown, such standardpreferably 4 being provided, adjacent the flange 24', with a detachablearm 25, which, in the present instance, is mounted perpendicularly tothe standard 24, by means of spaced studs 25 upon the standard 24, thestuds projecting through related apertures in the adjacent end of thearm 25, there being nuts 25 threaded on said studs. rFhe arm 25 ispreferably provided with a plurality ot spaced apertures 26, and a stud27,l such apertures and stud being adapted to be adjustably engaged byapertures 28 and stud 29 on an extension 30, which extension preferablyis provided with an inwardly turned pointed end 31, as shown.

Slidably mounted adjacent the lower end. of the standard 24 is an arm32, which arm is also preferably provided with apertures 33 and stud 34adapted to be adjustably engaged with similar apertures 3,5 and stud 36provided on extension 37, as shown,

the outer end of the extension 37 having a forked end 38 for dispositionabout a valve stem. The forked end 38 of the extension 37 preferably hasa socket 39 therein, adapted to receive a reducing washer 40, having asmaller slot 41, such Washer being employed for the purpose of reducingthe size of the aperture in the forked en 38, being retained in thesocket by means of a suitable headed screw (not shown) pro-4 jectingthrough the aperture 42 therein and being threaded into the socketv 43in the forked end 38. A numb-er of interchangeable washers 40 havingslots 41 of different sizes may be provided to suit various tvpes andsizes of valves, and when not in use, for the sake of convenience, maybe attached to the tool by any suitable means. Preferably mountedadjacent the arm 25 is a lever 44, the inner end of which is preferablyY-shaped, having cranks provided by branches 45 and 46, the branch 45preferably being o f greater length than the branch 46, and having twoor more apertures 4T therein, while the branch 46 may have a lessernumber of apertures 48 therein. Such le- .ver preferably has a stud 49formed thereon and preferably mounted on the stud 49 and securedthereto, or to the lever 44, by any suitable means, is a ratchet wheelr59. The stud 49 preferably projects through the standard 24, and on thefar side of said standard, on the stud preferably is mounted a sleeve51, and a nut 52, may be threaded on the end of the stud, the sleeve 51being for the purpose of providinga substantial bearing for the stud 49.

A link 53, which has a series of spaced apertures 54 and 55 in itsopposite ends may be secured' to either of the branches 45 or 46, and tothe movable arm 32, by any suitable means, studs 53 and eotter pins 537being shown. It will be noticed that when the link 53 is connected tothe branch 45 of the lever 44, upward movement of the llever serves toraise the movable arm 32, while if the link is connected to the branch46, downward movement of the lever serves to raise the movable arm 32 inthe same manner. This feature is important for the reason that inoperation it may be convenient to movel the lever upwardly, in whichevent the connection can be changed so that same will move downwardlyand still move the arm 32 in the same direction.

Pivotally mounted on the standard 24, adjacent to and cooperating withthe ratchet wheel 50 is a double bitted pawl 56, the rear end of saidpawl preferably having apertures 57 and 57 therein, one of "which isadapted to receive the turned end of a resilient link 58, whichpreferably passes through a related aperture in a guide member 59mounted on the standard 24, the outer end of said link being lconnectedto the hooked end 60 of the lever 61, pivotally mounted on the standard24. A spring 62 is preferably connected to the lever 61 to normally holdsame in operative position, and through the link 58, also hold the pawl56 in operative position. An adjustable stop 63 is preferably mountedvin the curve of the lever 61 to govern the clearance of pawl 56, andsuch stop preferably consists of a washer 64, having a comparativelylarge aperture therein, adapted to be loosely disposed about a pin 66, awasher 65 having a smaller aperture being mounted on said pin andengaged thereby to hold the washer 64 in its adjusted positions. Thepawl 56 in one position normally permits upward movement of the lever44, and prevents downward movement thereof.

It it is desired to change the direction of movement of the lever 44, asshown in Fig. l, the link 53 is connected with the branch 46 of saidlever, as shown in Fig. 10, and in order to adapt the pawl 56 to thedifferent direction of rotation of the ratchet wheel 50, it is onlynecessary to disconnect the link 58 from the aperture 57 and from thelever 61; such link is then passed through the inner aperture of theguide member 59 and reengaged with the aperture 57 in the pawl 56 andwith the hooked end 60 of the lever 61, as before. Thus it will be seenthat no matter in which direction the lever 44 is moved to transmitmotion to the arm 32, the pawl 56 adjustably permits inward movement ofthe armv 32 but automatically prevents its return to inoperativeposition, until released by the lever 61.

As above stated the extensions 30 and 37 are removable as well asadjustable and any suitable attachments may be secured to the arms 25and In Fig. 10, I have shown a hanger 62 which may be fastened to thearm 25 with a bolt 63, the inner end of said hangerbeing reduced so asto form a stud 64. Secured to the arm 32 directly beneath the hanger 62is a post 65 which may be secured to the arm 32 by bolt 66. lVith theseattachments a spring may be compressed by moving the lever 44, andlocked incompressed position until same can be secured by suitabledevices, hooks 67 being shown. After the hooks are applied to thespring, same may be removed from the device, and applied to the valvestem.

The device is simple in construction, produces a straight lift. andbecause of its adjustability may be utilized with any type of valve andmotor, or for other similar purposes.

Thile I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capablo ofvariation and modification without departing from the spirit of theinvention.

I, therefore, do not wish to be limited to the precise details ofwconstruction set forth,but desire to avail myself of such variationsand modifications as come. within the scope of the appended claims.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. A device of the character described comprising compressing members.movably 'inenten connected together; actuating means by an operativestroke of which in one direction moves said members together againstresistance; and means permitting a change in the direction oi movementof said actuating means so that an operative stroke of same also closessaid compressing members against resistance. v

2.1i device of the character described comprising compressingl membersmovably connected together; actuating means byan operative stroke oiwhich in one direction moves said members together against resistance;means tor automatically locking said members against a return movement;means permitting a change in the direction of movement ot' saidactuating means so thaty an operative stroke oi same also closes saidmembers; and means for adapting said locking means to lock said membersagainst movement away from each other when the direction oita movementof said actuating means is changed.

3. A device of the character described comprising oppositely disposedcompressing members; means for connecting said members together so thatsame move toward each other; actuating means by a stroke of which in onedirection moves said memberstoether; means permitting a change in theidirection of movement of said actuating means so that an operativestroke of same also closes said compressing members; and reversiblepaivl and ratchet mechanism cooperating with said actuating means forautomatically locking said compressing members against movement awayfrom each other when the direction of movement. of said actuating meansis changed.

4. A device of the character described comprising oppositely disposedcompressing members; means for connecting said members together so thatsame move toward each other; actuating means by an operative lstroke ofwhich in one direction moves said members together; means forautomatically locking said members against a return movement; meanspermitting a change in the direction of movement of said actuating meansso that a stroke of same also closes said members; a ratchet associatedWith said actuating means; a paivl cooperating with sald ratchet; meansfor releasing. sai pawl; and a link connecting said releasing means andsaid pawl, said link being resilient ,and confined intermediate its endsagainst lateral` movement whereby the same serves to release `said pawl,and to yieldably hold the same in engagement with said ratchet.

5. A device of the character described comprising compressing Ymembers,one ot which is movable; an actuating member having a plurality ofcranks adapted to be connected With said movable member, connection toone ot said cranks, through an operative stroke of said actuating memberin one direction, causing said compressing member to move toward theother, and connection to another ot said cranks, through an operativestroke of said actuating member in a diilerent direction also causingsaid compressing member to move ytoward the other.

6. A device oi the character described comprising compressing members,one ci? which is movable; an actuating member having a plurality oicranks adapted to ce connected with said movable member; connection toone of said cranks through an o erative stroke of said actuating member...i one direction, causing said movable compressing member to movetoward the other, and connection to another of said cranks, through anoperative stroke of said actuating member in a different direction. alsocausing said movable compressing member to move toward the other; andreversible pawl and ratchet mechanism cooperating with. said actuatingmember tor automatically locking said movablev member in closed positionWhen actuated by a stroke of said actuating member in either direction,

7. A device of the character described comprising a movable compressingmember,

a pivotally'mounted lever adjacent to said .1

movable member, connection thereof on one side of the pivot of saidlever through lan. operative stroke of said lever in one directionmoving said movable member inwardly and connection of said movablemember on. the other side of said pivot; through an operative stroke ofsaid lever in the opposite direction, also moving said movable memberinwardly.

8. A device of the character described comprising a movable member; apivotally `mounted lever adjacent to said movable member, connectionthereof on one side ot the pivot of said lever through an operativestroke of said lever in one direction moving said movable memberinwardly and connection of said movable member on the other side of saidpivot, through an operative stroke of said lever in the oppositedirection, also moving said movable member inwardly; a ratchet Wheelconnected to said lever; and a reversible pawl for automatically locking'said ratchet when moved in either direction.

9. A device of the character described comprising com ressing membersmovably connected toget er; actuating means for moving said compressingmembers together against resistance ;,\a ratchet wheel connected to saidactuating means; and a reversible pawl, having means to release same,such means at the same time being yieldable to permit operation of saidpavvl.

' 10. A device of the character described comprising compressing membersmovably connected together; actuating means tor 'lll moving saidcompressing members together against resistance; a ratchet. Wheelconnected to said actuating means; a pawl co-operating with saidratchet; a lever for releasing said pavvl; a link connecting said leverand said paivl, said link being resilient and conned intermediate itsends against lateral movement whereby same serves to release said pawland to yieldably hold same in engagement with said ratchet.

ll. A device .of the character described comprising compressing membeismovably connected together; actuating means' for moving said compressingmembers together against resistance; a ratchet Wheel connected to saidactuating means; a reversible pawl cooperating with said ratchet; alever for releasing said reversible paivl; a link connecting said leverand said reversible parvi, said link being resilient and confinedintermediate its ends againstl lateral movement, whereby same serves torelease said reversible pawl and to yieldably hold same in engagementwith said ratchet.

12. A device of the character described comprising oppositely disposedcompressing members; means for connecting said members together so thatsame move directly toward each other; actuating means by a stroke ofwhich in one direction moves said members together; means permitting achange in the direction of movement of said actuating means so that anoperative stroke of same also closes said compressing members; ratchetmechanism connected to said actuating means; a pawl co-operating withsaid ratchet; a lever for releasing said pa'vvl, and a link connectingsaid lever and manico ably hold same in engagement with said' ratchetmechanism.

i3. A device oi the character describedV comprising compressing membersmovably connected together; actuating means an operative stroke of whichin one direction moves said members together; means permitting a changein the direction of movement ot said actuating means so that anoperative stroke of the same also closes said compressing members; andadjustable means for varying the edective stroke of said actuatingmeans.

14. A device of the character described comprising compressing members,one of which is movable; an actuating member having a plurality ofcranks adapted to be connected With said movable member at varyingdistances, connection to one of said cranks, through an operative strokeof said actuating member in one direction, causing said compressingmember to move toward the other, and connection ton another of saidcranks, through an operative stroke of said actuating member in adilierent direction also causing said compressing member to move towardthe other.

ln testimony whereof l have signed my name to this specification in thepresence of two subscribing Witnesses.

@TTG BLGMBERG.

"Witnesses: v

@mennen E. Tnnnnnr, Fenna C. armaron.

